Propagate log config to backend

[pomarec]

I am not totally sure this is the right approach but I can't find another way to change the log level of the backend.

[coveralls]

Coverage remained the same when pulling ddd00ac on pomarec:propagate-log-config into 7f72672 on mozilla-services:master.

[tarekziade]

can you look if 5497479 fixes the issue for you ?

[pomarec]

It actually did not. But it probably solves it for backends concerned by the PR (gevent, fastgevent and geventwebsocket).

This is how to tested it :

Install chaussette#master and waitress#pomarec/feature.shutdown-gracefuly (this branch just stop the server when sending sighup to it and logs two info msgs)

pip install -e git://github.com/mozilla-services/chaussette.git@master#egg=chaussette
pip install -e git://github.com/pomarec/waitress.git@feature.shutdown-gracefuly#egg=waitress

run chaussette :
chaussette --log-level DEBUG --backend waitress
send a sighup to chaussette
kill -s -sighup <chaussette_pid>

Outputs :

2013-11-29 15:49:47 [15419] [INFO] Application is <function hello_app at 0x101aac050>
2013-11-29 15:49:47 [15419] [INFO] Serving on localhost:8080
2013-11-29 15:49:47 [15419] [INFO] Using <class 'chaussette.backend._waitress.Server'> as a backend

But it should ouputs this : (as it does with chaussette#pomarec/propagate-log-config)

2013-11-29 15:50:29 [15460] [INFO] Application is <function hello_app at 0x1054b8050>
2013-11-29 15:50:29 [15460] [INFO] Serving on localhost:8080
2013-11-29 15:50:29 [15460] [INFO] Using <class 'chaussette.backend._waitress.Server'> as a backend
2013-11-29 15:50:34 [15460] [INFO] Gracefully shutting down...
2013-11-29 15:50:34 [15460] [INFO] Shutdown

Note : to install chaussette#pomarec/propagate-log-config :
pip install -e git://github.com/pomarec/chaussette.git@propagate-log-config#egg=chaussette

[douardda]

I've tried the proposed scenario on a merge from current head with your branch, and it does not behaves as it should (I still do no have a "Gracefully shutting down..." log message).

Reading the code, I'm not sure I understand how it works.

Should'nt we provide an API for backend to handle the configuration of the logger for each backend?

David

[pomarec]

I'm sorry I don't have time to dig this those days. I'll probably come back to this later but can't commit.
It is possible that I mismerged my branches during my test. Sorry If I wasted your time.